Satellite radio is defined by the International Telecommunication Union (ITU)'s ITU Radio Regulations (RR) as a broadcasting-satellite service. The satellite's signals are broadcast nationwide, across a much wider geographical area than terrestrial radio stations, and the service is primarily intended for the occupants of motor vehicles. It is available by subscription, mostly commercial free, and offers subscribers more stations and a wider variety of programming options than terrestrial radio.
XM Satellite Radio (XM) was one of the three satellite radio (SDARS) and online radio services in the United States and Canada, operated by Sirius XM Holdings. It provided pay-for-service radio, analogous to subscription cable television. Its service included 73 different music channels, 39 news, sports, talk and entertainment channels, 21 regional traffic and weather channels, and 23 play-by-play sports channels. XM channels were identified by Arbitron with the label "XM".
Sirius Satellite Radio was a satellite radio (SDARS) and online radio service operating in North America, owned by Sirius XM Holdings.
AsiaStar is an American communications satellite which was operated by 1worldspace. It was constructed by Matra Marconi Space with Alcatel Space based on the Eurostar E2000+ bus design. Launch occurred on 21 March 2000, at 23:29:00 UTC. The launch was contracted by Arianespace, and used an Ariane 5G carrier rocket flying from ELA-3 at the Centre Spatial Guyanais. The INSAT-3B satellite was launched on the same rocket.
Sirius was a constellation of communications satellites operated at 5.0° East in geostationary orbit (GEO) by NSAB. They carried digital satellite television to the countries of Scandinavia, Baltic states, Eastern Europe and Africa, including the Viasat pay TV system, along with several pay TV packages for Eastern Europe, the TopTV package for Africa, a number of Ukrainian channels and the national Latvian and Lithuanian channel service free-to-air.
A Tundra orbit is a highly elliptical geosynchronous orbit with a high inclination, an orbital period of one sidereal day, and a typical eccentricity between 0.2 and 0.3. A satellite placed in this orbit spends most of its time over a chosen area of the Earth, a phenomenon known as apogee dwell, which makes them particularly well suited for communications satellites serving high latitude regions. The ground track of a satellite in a Tundra orbit is a closed figure 8 with a smaller loop over either the northern or southern hemisphere. This differentiates them from Molniya orbits designed to service high-latitude regions, which have the same inclination but half the period and do not loiter over a single region.
Sirius XM Holdings Inc. is an American broadcasting company headquartered in Midtown Manhattan, New York City that provides satellite radio and online radio services operating in the United States. It was formed by the 2008 merger of Sirius Satellite Radio and XM Satellite Radio, merging them into SiriusXM Radio. The company also has a 70% equity interest in Sirius XM Canada, an affiliate company that provides Sirius and XM service in Canada. On 21 May 2013, Sirius XM Holdings, Inc. was incorporated, and in January 2020, Sirius XM reorganized their corporate structure, which made Sirius XM Radio Inc. a direct, wholly owned subsidiary of Sirius XM Holdings, Inc.
Primosphere Limited Partnership was one of four companies bidding for Satellite Digital Audio Radio Service, or SDARS, licenses in the United States. The service would have been an advertisement-supported digital audio service with an emphasis on serving music genres that had lost exposure in the terrestrial radio market during that period, such as classic jazz, "beautiful music," "pop standards," and swing music. Two dedicated public radio talk channels were also proposed along with traditional talk radio channels.
JSAT Corporation (JSAT) was the first private Japanese satellite operator, which owned the JSAT satellites, as well as operated and partially owned the N-Star with NTT DoCoMo. Its origins can be traced to the funding of Japan Communications Satellite Company (JCSAT) and Satellite Japan Corporation in 1985. Both companies merged into Japan Satellite Systems Inc. in 1993. In 2000 the company was renamed as JSAT Corporation and was listed in the First Section of the Tokyo Stock Exchange. On September 1, 2008, the company was merged into the SKY Perfect JSAT Group.
Garuda 1 was an Indonesian communications satellite which is operated by ACeS. It was constructed by Lockheed Martin and is based on the A2100AXX satellite bus. It has two very large antennas, each measuring 12 meter in diameter. Launch occurred on 12 February 2000, at 09:10:54 GMT. The launch was contracted by ILS, and used a Proton-K/DM3 carrier rocket flying from Site 81/23 at the Baikonur Cosmodrome.
EchoStar VI or EchoStar 6 is a former American communications satellite which was operated by EchoStar. In 2013, the satellite was rebranded BermudaSat 1 after the satellite was sold to a Bermudan subsidiary of SES S.A., a satellite technology company based in Luxembourg.
Galaxy 10R was an American communications satellite which was operated by PanAmSat, and later Intelsat. It was constructed by Hughes and is based on the HS-601HP satellite bus. Launch occurred on 25 January 2000, at 01:04. The launch was contracted by Arianespace, and used an Ariane 4 42L-3 carrier rocket flying from ELA-2 at the Guiana Space Centre.
Hispasat 1C, also known as Hispasat 30W-3 and Hispasat 84W-1, was a Spanish communications satellite which was operated by Hispasat. It was constructed by Alcatel Space and is based on the Spacebus-3000B2 satellite bus. Launch occurred on 3 February 2000, at 23:30. The launch was contracted by ILS, and used an Atlas IIAS carrier rocket flying from SLC-36B at Cape Canaveral.
Sirius FM-1, also known as Radiosat 1, was an American communications satellite which was operated by Sirius XM Radio, previously Sirius Satellite Radio. It was constructed by Space Systems Loral and was based on the LS-1300 satellite bus. Launch occurred on 30 June 2000, at 22:08 GMT. The launch was contracted by International Launch Services, and used a Proton-K/DM3 carrier rocket flying from Site 81/24 at the Baikonur Cosmodrome.
Sirius FM-3, also known as Radiosat 3, was an American communications satellite which was operated by Sirius XM Radio, previously Sirius Satellite Radio. It was constructed by Space Systems Loral and was based on the LS-1300 satellite bus. Launch occurred on 30 November 2000, at 19:59 GMT. The launch was contracted by International Launch Services, and used a Proton-K/DM3 carrier rocket flying from Site 81/23 at the Baikonur Cosmodrome.
INSAT-3B is an Indian communications satellite which was built by the Indian Space Research Organisation and operated by Indian National Satellite System.
Sirius FM-5, also known as Radiosat 5, is an American communications satellite which is operated by Sirius XM Radio. It was constructed by Space Systems Loral, based on the LS-1300 bus, and carries a single transponder designed to transmit in the NATO E, F and I bands. It is currently being used to provide satellite radio broadcasting to North America.
Digital audio radio service (DARS) refers to any type of digital radio program service. In the United States it is the official FCC term for digital radio services.
Sirius XM Canada Holdings Inc. is a Canadian radio broadcasting company, which operates as a Canadian affiliate of Sirius XM Radio. The company received approval from the Canadian Radio-television and Telecommunications Commission on April 11, 2011 to merge the formerly distinct XM Radio Canada and Sirius Canada services, following the merger of XM Satellite Radio and Sirius Satellite Radio in the United States. The merger was subsequently completed as of June 21, 2011.
The JSAT constellation is a communication and broadcasting satellite constellation formerly operated by JSAT Corporation and currently by SKY Perfect JSAT Group. It has become the most important commercial constellation in Japan, and fifth in the world. It has practically amalgamated all private satellite operators in Japan, with only B-SAT left as a local competitor.
